Membrane-actuated charge controlled mirror (CCM) projection display
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United States of America Patent
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Feb 29, 2000
Issued Date -
N/A
app pub date -
Dec 9, 1998
filing date -
Oct 15, 1998
priority date (Note) -
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Abstract
The present invention provides a Schlieren projection system with a large aperture reflective imager. The combination of a beam-addressed CCM design with flat-panel manufacturing techniques configuration produces a large aperture imager that overcomes the problems of limited deflection range, high beam current, electrostatic instability and limited resolution associated with known electrostatically-actuated micromirror targets. The CCM imager includes a thin insulating membrane that decouples the electron beam from the micromirror array. Decoupling also allows the mirror to be designed to optimize reflectivity, exhibit a higher resonant frequency for better video performance, and be fabricated simultaneously with the hinges. The CCM imager is fabricated using flat-panel manufacturing techniques that are ideally suited to producing large aperture devices at low cost.
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